Nitro-indane-diones, their production, and pharmaceutical compositions and their administration in forms suitable for the prophylaxis of asthma, hayfever and rhinitis in amounts effective for oral, parenteral and insufflation administration for such forms. The compounds are nitro-indane-diones of the formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 have certain designated meanings, obtained by nitration of a parent un-nitrated compound and wherein ring A contains 1 or 2 double bonds.
                            硝基
吲哚二酮,其生产、制药组合物以及以适合口服、注射和吸入的形式给药,用于预防哮喘、花粉症和鼻炎的有效量。该化合物是式子为:##STR1## 其中R.sub.1、R.sub.2、R.sub.3和R.sub.4具有特定的含义,通过对未硝化的母体化合物进行硝化得到,环A包含1或2个双键。